Date: Fri, 12 Jul 2024 19:06:04 +0200 From: Santiago Martinez <sm@codenetworks.net> To: "freebsd-net@freebsd.org" <freebsd-net@freebsd.org> Subject: Multiple Fibs and INET6 Message-ID: <da781b66-4ab3-426f-bf56-f453030c6e61@codenetworks.net>
next in thread | raw e-mail | index | archive | help
This is a multi-part message in MIME format.
--------------syzCHzmL0sxiZonNychVsxOM
Content-Type: text/plain; charset=UTF-8; format=flowed
Content-Transfer-Encoding: 8bit
Hi Everyone.
While adding -F ( fib as used in netstat ) to ping and ping6 I have
found something that from my understanding is not correct.
Please can you advise?
I have the following setup :
-- two fibs (0 and 1)
-- two loop-backs (lo0 and lo1).
-- Lo1 has been assigned to fib1
--net.add_addr_allfibs = 0
My interface output looks like this:
ifconfig lo0 | grep inet6
inet6 ::1 prefixlen 128
inet6 fe80::1%lo0 prefixlen 64 scopeid 0x2
ifconfig lo1 | grep inet6
inet6 fe80::1%lo1 prefixlen 64 scopeid 0x3
If I do a netstat -rn -6 -F0 I get the following which is was i expected.
Internet6:
Destination Gateway Flags
Netif Expire
::/96 link#2 URS
lo0
::1 link#2 UHS
lo0
::ffff:0.0.0.0/96 link#2 URS
lo0
fe80::%lo0/10 link#2 URS
lo0
fe80::%lo0/64 link#2 U
lo0
fe80::1%lo0 link#2 UHS
lo0
ff02::/16 link#2 URS
lo0
Now, netstat -rn -6 -F1 shows "fe80::1%lo0" which should not be there
and "fe80::1%lo1" is missing which should be there.
Internet6:
Destination Gateway Flags
Netif Expire
fe80::%lo1/64 link#3 U
lo1
*fe80::1%lo0 link#2 UHS
lo0*
What output I was expecting was:
Internet6:
Destination Gateway Flags
Netif Expire
fe80::%lo1/64 link#3 U
lo1
*fe80::1%lo1 link#3 UHS
lo1*
This makes the ping -6 -F0 fe80::1%lo0 to work but ping -6 -F1
fe80::1%l01 to fail which I wanted to use as test case.
Thanks in advance.
Santiago
--------------syzCHzmL0sxiZonNychVsxOM
Content-Type: text/html; charset=UTF-8
Content-Transfer-Encoding: 8bit
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="content-type" content="text/html; charset=UTF-8">
</head>
<body>
<p>Hi Everyone.</p>
While adding -F ( fib as used in netstat ) to ping and ping6 I have
found something that from my understanding is not correct.<br>
Please can you advise?<br>
<p>I have the following setup :</p>
-- two fibs (0 and 1) <br>
-- two loop-backs (lo0 and lo1).<br>
-- Lo1 has been assigned to fib1<br>
--<span style="color:#000000;background-color:#ffffff;">
net.add_addr_allfibs = 0</span>
<p><span style="color:#000000;background-color:#ffffff;">My
interface output looks like this:<br>
</span><span style="font-family:monospace"></span></p>
<p><span style="font-family:monospace"></span></p>
<p><span style="font-family:monospace"><span
style="color:#000000;background-color:#ffffff;">ifconfig lo0 |
grep inet6
</span><br>
inet6 ::1 prefixlen 128
<br>
inet6 fe80::1%lo0 prefixlen 64 scopeid 0x2
<br>
</span></p>
<p><span style="font-family:monospace">ifconfig lo1 | grep inet6
<br>
inet6 fe80::1%lo1 prefixlen 64 scopeid 0x3<br>
<br>
</span></p>
<p>If I do a netstat -rn -6 -F0 I get the following which is was i
expected.<br>
</p>
<p><span style="font-family:monospace"><span
style="color:#000000;background-color:#ffffff;">Internet6:
</span><br>
Destination Gateway
Flags Netif Expire
<br>
::/96 link#2
URS lo0
<br>
::1 link#2
UHS lo0
<br>
::ffff:0.0.0.0/96 link#2
URS lo0
<br>
fe80::%lo0/10 link#2
URS lo0
<br>
fe80::%lo0/64 link#2
U lo0
<br>
fe80::1%lo0 link#2
UHS lo0
<br>
ff02::/16 link#2
URS lo0<br>
<br>
</span></p>
Now, netstat -rn -6 -F1 shows "fe80::1%lo0" which should not be
there and "fe80::1%lo1" is missing which should be there.
<p></p>
<p><span style="font-family:monospace"><span
style="color:#000000;background-color:#ffffff;">Internet6:
</span><br>
Destination Gateway
Flags Netif Expire
<br>
fe80::%lo1/64 link#3
U lo1
<br>
<b>fe80::1%lo0 link#2
UHS lo0</b><br>
<br>
</span></p>
What output I was expecting was:
<p><span style="font-family:monospace"><span
style="color:#000000;background-color:#ffffff;">Internet6:
</span><br>
Destination Gateway
Flags Netif Expire
<br>
fe80::%lo1/64 link#3
U lo1
<br>
<b>fe80::1%lo1 link#3
UHS lo1</b></span></p>
<p><br>
</p>
<p>This makes the ping -6 -F0 fe80::1%lo0 to work but ping -6 -F1
fe80::1%l01 to fail which I wanted to use as test case.<span
style="font-family:monospace"><br>
</span></p>
<p>Thanks in advance.</p>
Santiago
<p><span style="font-family:monospace"><br>
</span></p>
</body>
</html>
--------------syzCHzmL0sxiZonNychVsxOM--
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?da781b66-4ab3-426f-bf56-f453030c6e61>